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Integral of 1/(cosx-1)

by montana111
Tags: 1 or cosx1, integral
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montana111
#1
Feb3-10, 01:05 PM
P: 12
1. The problem statement, all variables and given/known data

help me out. I want to find the integral of 1/(cosx-1). I first multiplied the function by cosx+1/cosx+1. then i ended up with the integral of (cosx+1)/(-sinx)^2 leading to integral of cosx/(-sinx)^2 plus integral of 1/(-sinx)^2.

the integral of 1/(-sinx)^2 i believe is just cotx.

the integral of cosx/(-sinx)^2 i think is -(integral of cotx*cscx)


2. Relevant equations

integral of 1/(cosx-1)
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Mark44
#2
Feb3-10, 02:13 PM
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P: 21,397
What's your question? I don't see anything wrong in what you've described. You can check any antiderivative you get by taking its derivative. If you get back to the integrand, you're good.
vela
#3
Feb3-10, 02:28 PM
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Thanks
PF Gold
P: 11,868
What function has as its derivative -cot x csc x?


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